Development of triarylsulfonamides as novel anti-inflammatory agents

Triaylsulfonamides were identified as novel anti-inflammatory agents, acting by inhibition of RANKL and TNFα signaling. Structure-activity studies led to the identification of compounds with in vitro potencies of <100 nM against J774 macrophages and osteoclasts, but with little activity against osteoblasts or hepatocytes (IC50 >50 μM). A representative compound (4k, ABD455) was able to completely prevent inflammation in vivo in a prevention model and was highly effective at controlling inflammation in a treatment model.

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